That's called a duet.
a piece of music for two singers or performers,or the performers themselevs.
It is called a DuetDuet
The word could be a performance.(A recital is a musical performance by a soloist or two performers; a concert is a performance by a group.)
A duet.
homophonic
A duet
duo
Quartet
e means e
A piece.
Duet
The first successful commercial movies were mostly two-realers of slapstick comedy. The performers, Chaplin, Stan Laurel, etc. all had music hall experience to draw on.